Subaru 2003 Legacy - Manual (Page 154)

3-30
B
For vehicles with automatic climate control
HB3016BB
To turn on the defogger, push the switch. To turn it off, push the switch
again.
The indicator light “u” lights up on the climate control display panel
while the rear window defogger is operating.
Windshield wiper deicer (if equipped)
CAUTION
To prevent the battery from being discharged, do not operate the
windshield wiper deicer continuously for any longer than neces-
sary.
HB2027BB